Clinical Advances in Periodontics最新文献

{"title":"Digital analysis of periodontal phenotype in the maxillary anterior region.","authors":"Wenxin Li, Tingting Xu, Haiqi Zhang, Yang Lü, Qiao Yang, Jing Zhu, Yanan Xu, Yi Peng","doi":"10.1002/cap.10353","DOIUrl":"https://doi.org/10.1002/cap.10353","url":null,"abstract":"<p><strong>Background: </strong>Accurate assessment of the periodontal phenotype is crucial for optimizing esthetic outcomes in dental practice. This study systematically evaluated key periodontal parameters in the maxillary anterior region and analyzed their interrelationships to enhance diagnostic precision and inform personalized treatment planning.</p><p><strong>Methods: </strong>Sixty-two periodontally healthy volunteers were included. Labial papilla height (PH), gingival zenith (GZ), the distance between the GZ of the lateral incisor and the gingival line (LID), height of contact surface (CS), crown width (CW), and crown length (CL) were measured using plaster models, intraoral photographs, and digital models obtained via intraoral scanning. Keratinized gingiva width (KGW) was assessed using a periodontal probe. Labial gingival thickness (GT) was measured at three locations-1 mm apical to the gingival margin, at the alveolar crest, and 2 mm apical to the crest-while labial alveolar bone thickness (BT) was evaluated at the alveolar crest and 2 mm apical to the crest, both using cone beam computed tomography (CBCT). Correlations among periodontal phenotype parameters were analyzed.</p><p><strong>Results: </strong>Parameters measured from intraoral scanned digital models showed no statistically significant differences compared to plaster models (NS, P>0.05). Varying degrees of correlation were identified among components of the periodontal phenotype, including GT, BT, KGW, PH, GZ, LID, and the ratios of CW to CL (CW/CL) and CS to CL (CS/CL).</p><p><strong>Conclusions: </strong>Digital technology enables noninvasive, rapid, and precise assessment of periodontal phenotype, supporting risk assessment, and personalized treatment planning in aesthetic dentistry.</p><p><strong>Key points: </strong>Digital methods yield precise periodontal phenotype analysis in aesthetic zones. Intraoral scanning and CBCT provide detailed periodontal phenotype parameters, revealing correlations with key esthetic factors like papilla height and gingival zenith. Correlation analysis between periodontal phenotype and key esthetic factors in the anterior maxilla enhances understanding of phenotype's impact on aesthetic outcomes and improves treatment planning.</p><p><strong>Plain language summary: </strong>This study aimed to improve how dentists assess the surrounding tissues in the front upper teeth, which is essential for achieving natural-looking and aesthetically pleasing results in dental treatments. Researchers analyzed the gum, tooth, and bone characteristics of 62 healthy volunteers using traditional plaster models, intraoral photographs, and digital scans. They measured key parameters including gum thickness, bone thickness, and other relevant features. The study found that digital scans provided results as accurate as the traditional plaster models. Furthermore, the researchers identified connections between different gum and tooth characteristics, such as how","PeriodicalId":55950,"journal":{"name":"Clinical Advances in Periodontics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143694422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vital root resection with regenerative retrograde vital pulp therapy: A case report.","authors":"Yi-Chu Wu, Constance Kang-Ting Teoh, Se Young Ryoo, Philip Kang, Leonard Garfinkel, Sahng G Kim","doi":"10.1002/cap.10346","DOIUrl":"https://doi.org/10.1002/cap.10346","url":null,"abstract":"<p><strong>Background: </strong>Vital root resection is a surgical procedure that involves the selective removal of a root of a multi-rooted tooth to preserve the remaining tooth structure and pulp, maintaining the vitality and function of the tooth. When combined with regenerative retrograde vital pulp therapy (rVPT), it may offer a less invasive and more cost-effective alternative to traditional root resection methods. The purpose of this article is to report the techniques and outcomes of vital root resection and rVPT for the periodontally involved fractured mesiobuccal (MB) root in a maxillary first molar.</p><p><strong>Methods: </strong>This case report describes the treatment of a 56-year-old patient with a chief complaint of swelling and pain in her upper right quadrant and with the periodontally involved MB root of tooth #3 using vital root resection combined with rVPT. Tooth #3 was diagnosed as normal pulp and acute periodontal abscess with a suspected root fracture in the MB root. Upon root fracture detection, root resection and rVPT with amnion-chorion membrane and bioceramic material were performed, followed by guided tissue regeneration.</p><p><strong>Results: </strong>Tooth #3 remained asymptomatic with confirmed osseous healing at 6 months, and gingival recession on the adjacent distobuccal root was successfully treated via connective tissue graft. Tooth #3 remained vital at 18 months without clinical and radiographic signs and symptoms.</p><p><strong>Conclusions: </strong>This case report highlights the potential of vital root resection using rVPT as a less invasive treatment modality that may preserve the tooth's vitality and function, offering a cost-effective alternative to more traditional methods.</p><p><strong>Key points: </strong>The preservation of tooth function and vitality may be achieved through vital root resection combined with regenerative retrograde vital pulp therapy. Regenerative retrograde vital pulp therapy may be performed using a bioactive scaffold and bioceramic material. This biologically oriented approach may provide a less invasive and more cost-effective alternative to traditional root resection methods that require orthograde endodontic therapy followed by a permanent full-coverage restoration.</p><p><strong>Plain language summary: </strong>This case report presents a minimally invasive dental procedure to preserve tooth function and vitality. A 56-year-old patient reported swelling and pain in the upper right part of her mouth. Examination of tooth #3 revealed an acute gum infection and a likely root fracture in one of the roots. The treatment involved vital root resection, which removes only the damaged root, and regenerative pulp therapy to enhance healing. The regenerative pulp therapy used bioactive materials, including an amnion-chorion membrane and bioceramics, to support tissue regeneration. After 6 months, the patient showed successful bone healing, and gum recession around the treated area was","PeriodicalId":55950,"journal":{"name":"Clinical Advances in Periodontics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143694424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Guided transpositional bone blocks in esthetic zone: Surgical technique and case report.","authors":"Ming-Fu Ye, Dumitru Chele, Javier Calatrava, Abdusalam Alrmali, Wen-Xia Huang, Hom-Lay Wang","doi":"10.1002/cap.10352","DOIUrl":"https://doi.org/10.1002/cap.10352","url":null,"abstract":"<p><strong>Background: </strong>The ultimate objective of implant dentistry is to position the implant in a three-dimensional, prosthetic-driven location. This case highlights a guided approach for harvesting and positioning an autogenous bone block to restore a horizontal bone defect in the anterior maxilla.</p><p><strong>Methods: </strong>This case report describes a 55-year-old patient with horizontal bone deficiency in the anterior maxilla following teeth loss. Using specialized software, a surgical guide was designed to facilitate the harvesting of an autogenous bone block from the subnasal region in the same location where implants were planned to be placed. The graft was then repositioned and fixed with titanium screws, and the gaps were grafted with xenogenic bone particles and covered with an absorbable collagen membrane. After 6 months, the implants were placed, followed by prosthetic restoration.</p><p><strong>Results: </strong>A one-stage implant placement was performed after an uneventful healing period. The bone augmentation resulted in a ridge width of 8 mm for a net gain of 5 mm. After 4 months, the implants were loaded with a screw-retained zirconia bridge.</p><p><strong>Conclusion: </strong>Guided transpositional bone blocks offer a predictable approach to treating horizontal bone defects in the esthetic zone. Utilizing digital planning and surgical guides enhances precision, making the result more predictable.</p><p><strong>Key points: </strong>This case provides new information as it highlights a novel guided approach for harvesting and positioning an autogenous bone block to restore a horizontal bone defect in the anterior maxilla using a surgical guide. The keys to successful management of this case include using precise digital planning, the design and use of a surgical guide to accurately harvest the autogenous bone block, proper fixation of the graft and ensuring an uneventful healing period before implant placement and prosthetic restoration. The primary limitations to success in this case could involve the challenge of having adequate distance away from the nasal floor for harvesting and repositioning the autogenous bone block and potential complications during the healing period.</p><p><strong>Plain lanuage summary: </strong>This report describes a modern technique for addressing bone loss in the upper front part of the mouth, crucial for placing dental implants correctly. A 55-year-old patient with insufficient bone was treated using a digital plan to precisely guide the movement of a bone piece from a nearby area to where it was needed. This guided approach involved designing a custom guide with computer software, securely attaching the bone, and using special materials to aid healing. After 6 months, the dental implants were successfully placed and fitted with new teeth, resulting in a stable and natural-looking outcome.</p>","PeriodicalId":55950,"journal":{"name":"Clinical Advances in Periodontics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gingival odontogenic keratocyst presenting as pseudoinfection: Inclusion of demonstrative case report and review.","authors":"John K Brooks, Sami Abu Alhuda, Pareesa Malik, Jeffery B Price, Camille E Alexander, Ahmed S Sultan","doi":"10.1002/cap.10350","DOIUrl":"https://doi.org/10.1002/cap.10350","url":null,"abstract":"<p><strong>Background: </strong>The peripheral odontogenic keratocyst (POKC) is a rare developmental odontogenic cyst and represents the soft tissue counterpart of the more common intraosseous variant. Although the majority of POKCs have been discovered on the gingiva, scant information is available in the periodontal literature.</p><p><strong>Methods: </strong>A 69-year-old man presented with a painless, red fluctuant-like papular lesion on the maxillary anterior labial gingiva. The adjacent teeth had vital pulpal responses and normal gingival probing depths. A subtle radiolucency with corticated borders was evident overlying the apical third of the roots. The patient recalled receiving local anesthesia in this site 3 months ago in conjunction with dental restorative treatment.</p><p><strong>Results: </strong>An excisional biopsy was performed and pus-like material extruded from the surgical specimen. The histopathologic diagnosis was POKC.</p><p><strong>Conclusion: </strong>With the inclusion of this report, at least 31% (14/45) of cases of gingival OKC have mimicked infection by exhibition of a fluctuant consistency and/or extrusion of thick luminal fluid that contains keratin and resembles purulence. Due to the high recurrence rate, affected patients should be followed for at least 5-7 years.</p><p><strong>Plain language summary: </strong>This article features a rare example of the peripheral odontogenic keratocyst (POKC) on the gingiva. The lesion was initially suspected to be an infection and appeared as a painless, red compressible growth on the maxillary anterior labial gingiva of an older adult male. A dental radiograph revealed a subtle radiolucency with corticated borders. A biopsy was performed to determine the diagnosis. Affected patients must continue to be monitored for lesional recurrence.</p><p><strong>Key points: </strong>The gingival odontogenic keratocysts may be adherent to the overlying mucosa and warrant supraperiosteal dissection during excisional biopsy to reduce lesional recurrence. At least 31% of published cases of gingival odontogenic keratocysts have featured an infection-like clinical presentation. Due to the high rate of lesional recurrence, affected patients should undergo yearly follow-up clinical assessments for at least 5 years, as informed by the current evidence.</p>","PeriodicalId":55950,"journal":{"name":"Clinical Advances in Periodontics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143574431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tenting screw-assisted membranes alveolar ridge augmentation in the anterior mandible.","authors":"Fabrizio Belleggia","doi":"10.1002/cap.10348","DOIUrl":"https://doi.org/10.1002/cap.10348","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Background: &lt;/strong&gt;Vertical ridge augmentation with a guided bone regeneration procedure in the anterior mandible requires membrane lingual stabilization. Until now, the only predictable way was the use of titanium-reinforced dense polytetrafluoroethylene (TR-dPTFE) membranes stabilized with self-drilling screws, which require large flaps for both placement and removal. This case report introduces a technique that does not require any membrane lingual fixation.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Methods: &lt;/strong&gt;A tenting screw was placed in the middle of an anterior mandibular defect. A small TR-dPTFE membrane was bent 90° to take an L shape and be positioned crestally and lingually to the defect. Then, a larger collagen membrane (CM) was sutured with absorbable stitches to its more lingual and apical part. The TR-dPTFE membrane was stabilized on top of the tenting screw with its cap screw. A mixture of autogenous and porcine bone in a 1:1 ratio filled the defect. Then, the CM was moved toward the buccal side and stabilized with pins. After 8 months, the site was re-opened, the TR-dPTFE membrane and the tenting screw were removed with a small lingual envelope flap, two implants were inserted in the augmented bone and healing abutments applied.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;A screw-retained bridge was delivered 6 weeks after implant insertion and the 2.5-year follow-up showed perfectly maintained hard and soft tissues.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusions: &lt;/strong&gt;The stabilization of both membranes to the tenting screw reduced morbidity at re-entry avoiding a large lingual flap, while CM allowed graft revascularization from the periosteum, and resulted in optimal quality of the regenerated bone.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Key points: &lt;/strong&gt;Titanium-reinforced dense polytetrafluoroethylene (TR-dPTFE) membranes require stabilization with pins or screws at the recipient site and large flaps for both placement and removal. On the lingual side of the anterior mandible the use of miniscrews is difficult and invasive, while the use of a tenting screw, placed vertically in the middle of the defect, allows for a simple and easy membrane stabilization and removal. Two membranes are utilized: a small TR-dPTFE membrane, that is stabilized to the tenting screw with its cap screw, and that does not allow to a collagen membrane (CM), that is sutured to the TR-PTFE membrane to cover the exposed part of the defect, to collapse over the bone deficiency. The CM, that covers the majority of the defect, after its biodegradation, allows graft revascularization from the periosteum, and results in optimal quality of the regenerated bone.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Plain language summary: &lt;/strong&gt;Vertical bone defects of the jaws require bone augmentation procedures to allow the correct implants insertion to rehabilitate the masticatory function and aesthetics of patients. Among these techniques, guided bone regeneration is one of the most widely used. This technique is based on the use of non-absorbable t","PeriodicalId":55950,"journal":{"name":"Clinical Advances in Periodontics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143470061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"10-year follow-up of adolescent leukemia diagnosed through gingiva: A case report.","authors":"Gang Yang, Yuan Tu, Wenjie Hu, Xianghui Feng","doi":"10.1002/cap.10340","DOIUrl":"https://doi.org/10.1002/cap.10340","url":null,"abstract":"<p><strong>Background: </strong>Systemic diseases often present initial signs through oral manifestations, making early recognition essential for accurate diagnosis and effective treatment planning. Patients with acute lymphoblastic leukemia (ALL) commonly experience gingival issues. This case report discusses the treatment and outcomes of a 12-year-old female patient who presented with gingival swelling and pain and was subsequently diagnosed with ALL.</p><p><strong>Methods: </strong>The patient underwent chemotherapy and basic periodontal supragingival scaling. Comprehensive clinical assessments, oral photographs, and imaging data were recorded at the initial visit, and at follow-ups 8 years and 10 years later.</p><p><strong>Results: </strong>A routine blood test and bone marrow aspiration confirmed a diagnosis of B-cell acute lymphoblastic leukemia (B-cell ALL). After 1 year of chemotherapy with rituximab, the patient recovered and was discharged. An 8-year follow-up revealed significant clinical attachment gain and healthy gingival status, and complete recovery was observed at a 10-year follow-up.</p><p><strong>Conclusions: </strong>Adolescents presenting with swollen and bleeding gums should be evaluated for potential leukemia. Dentists, especially periodontists, should be aware of the oral manifestations of ALL and coordinate with medical professionals to establish a comprehensive, long-term treatment plan. Periodontal health in adolescents with ALL can improve significantly with leukemia remission and appropriate basic periodontal therapy.</p><p><strong>Key points: </strong>Oral manifestations as early indicators: In adolescents with acute lymphoblastic leukemia (ALL), systemic symptoms may be minimal or absent. Early recognition of oral changes, such as gingival swelling or bleeding, is crucial for timely diagnosis. Long-term periodontal recovery: A 10-year follow-up indicates that periodontal health can improve following leukemia treatment and basic periodontal therapy, although longer follow-up is recommended to assess the stability of recovery.</p><p><strong>Plain language summary: </strong>It is challenging to recognize systemic diseases early through oral manifestations in adolescents, which is critical for accurate diagnosis. Acute lymphoblastic leukemia (ALL) is a disease of the blood system that manifests itself in the gingiva. This case report describes the early recognition of adolescent ALL through gingival swelling and pain as the initial clinical manifestation and recorded the 10-year follow-up process. After chemotherapy, the patient was cured. In the 8th year, the red, swollen and painful gingiva was relieved, no significant resorption of the alveolar bone was observed, and the periodontal condition was fully recovered two years after basic treatment. This case emphasizes the importance of dentists being vigilant for signs of systemic disease in the oral cavity and the role of long-term periodontal maintenance.</p>","PeriodicalId":55950,"journal":{"name":"Clinical Advances in Periodontics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143415720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crestal approach for repair of oroantral bone defects and subsequent implant placement.","authors":"Min Yang, Miriam Ting, Rodrigo Neiva, Jonathan Korostoff","doi":"10.1002/cap.10332","DOIUrl":"https://doi.org/10.1002/cap.10332","url":null,"abstract":"<p><strong>Background: </strong>Oroantral communication (OAC) can occur after a dental extraction. Occasionally, bony defects may persist despite successful soft tissue closure of the OAC. The absence of bone in these areas poses challenges for dental implant placement. This report describes a novel approach of vertical sinus elevation through the oroantral bony defect to address such scenarios.</p><p><strong>Methods: </strong>A 36-year-old male (Patient 1) and a 62-year-old female (Patient 2) presented with OACs in the first maxillary molar region. Vertical sinus elevation was achieved through the existing defect. This was followed by placement of corticocancellous bone allograft mixed with platelet-rich fibrin (PRF) in the space surrounded by the elevated sinus membrane that was then covered with a resorbable collagen membrane. Implants were placed 9 and 6 months after the sinus lift in Patient 1 and Patient 2, respectively.</p><p><strong>Results: </strong>In both cases, substantial radiographic bone fill of the oroantral bony defect was achieved allowing successful placement of dental implants. Following insertion of final restorations, the patients were satisfied with the esthetic outcomes and reported improved oral function.</p><p><strong>Conclusions: </strong>Vertical sinus elevation through residual bony oroantral defects in conjunction with placement of bone allograft mixed with PRF yields sufficient alveolar bone for subsequent placement of dental implants.</p><p><strong>Plain language summary: </strong>Bone defects secondary to oroantral communications resulting from dental extractions may persist despite successful soft tissue closure. Such oroantral communication (OAC) pose challenges for dental implant placement. This report describes a technique for repairing oroantral bony defects and subsequent placement of dental implants. Two patients presented with OACs in the first maxillary molar region. Vertical sinus elevation with corticocancellous bone allograft and platelet-rich fibrin, was achieved through the existing defect. Substantial radiographic bone fill of the oroantral bony defect was achieved and implants with final restorations were subsequently placed.</p><p><strong>Key points: </strong>Elevation of the sinus membrane through an existing crestal defect resulting from an OAC allows the clinician to successfully elevated the sinus membrane for bone augmentation allowing eventual placement of an implant. The approach allows the clinician to achieve this goal without preparing a second window through a more invasive lateral approach.</p>","PeriodicalId":55950,"journal":{"name":"Clinical Advances in Periodontics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143415855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polymethyl methacrylate-based bone cement using a prototype for gingival smile: A case report.","authors":"Biancca Rodriguez-Mannucci, Alberto Rios-Arango, Andrea Vergara-Buenaventura","doi":"10.1002/cap.10322","DOIUrl":"https://doi.org/10.1002/cap.10322","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Background: &lt;/strong&gt;The treatment of gummy smile (GS) with polymethyl methacrylate (PMMA)-based implants is suggested in specific cases such as those in which there is a lack of lip support due to a marked depression of the anterior maxillary process; however, it can be associated with certain complications related to the material and the surgical approach.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Methods: &lt;/strong&gt;A patient with a GS of combined etiology was treated with clinical crown lengthening and lip repositioning surgery with placement of a PMMA-based bone cement implant to fill the subnasal depression. Surgical planning was performed using a 3-dimension resin-printed model to achieve an optimal fit of the PMMA implant to the geometry of the bone defect and to avoid any damage related to heat exposure from the polymerization process and any possible damage to the tooth roots with the fixation screws. In addition, the use of an antibiotic cement can help prevent any possible infection.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;The patient reported edema and mild pain. After 5 months an increase in the length of the dental crowns, a reduction of the exposed gingiva to 1 mm and a new support of the upper lip were clinically observed. Cone-beam computed tomography showed proper PMMA implant fit.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusions: &lt;/strong&gt;The use of PMMA-based bone cement appears to be an effective technique for the treatment of cases of GS associated with hypermobile upper lip and maxillary subnasal depression. The use of a printed resin model avoids complications during curing of the material, such as high exothermic reactions and associated infections.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Key points: &lt;/strong&gt;Identification of the etiologic factors of gummy smile is fundamental to the treatment of gummy smile. Once the diagnosis is established, therapy focuses on the treatment of these factors, which may be single or combined. The use of a PMMA-based bone cement implant in conjunction with clinical crown lengthening surgery is an effective treatment option for the management of EGD related to upper lip hypermobility, passive altered eruption and, maxillary subnasal depression. A possible clinical dilemma could arise when considering some complications associated with the use of PMMA implants such as allergies or infections. However, the use of a 3D printed resin model facilitates handling and fitting outside the mouth by eliminating heat exposure from the polymerization of the cement and to avoid any possible damage to the tooth roots with the fixation screws. In addition, the use of an antibiotic cement can help prevent any possible infection.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Plain language summary: &lt;/strong&gt;The treatment of gummy smile will depend on its etiological factor. In some cases of combined etiology, the use of polymethyl methacrylate (PMMA) implants has been suggested, such as those in which there is a lack of lip support due to a marked depression of the maxillary anterior process; however, the use of","PeriodicalId":55950,"journal":{"name":"Clinical Advances in Periodontics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143383518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advanced dental surgeries using fused filament fabrication and stereolithography printing: Case reports.","authors":"Jaewon Kim, Michael Danielak, Du-Hyeong Lee, Bandar Almaghrabi, Sebastiano Andreana, Jekita Kaenploy, Yousef Kareem, Fernando L Esteban Florez, Praveen R Arany","doi":"10.1002/cap.10344","DOIUrl":"https://doi.org/10.1002/cap.10344","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Background: &lt;/strong&gt;The widespread use of digital imaging can now be combined with additive three-dimensional (3D) printing, changing traditional clinical dentistry, especially in challenging cases. Visualizing the bone and soft tissue anatomy using computed tomography (CT) and intraoral scanning generated digital files that can be further processed for 3D printing. Among the popular 3D printing approaches, fused filament fabrication (FFF) and stereolithography (SLA) are broadly used due to their rapid production, precision, and ease of use.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Methods: &lt;/strong&gt;The current case series outlines three challenging clinical scenarios where a combination of CT and intraoral scans were utilized for digital planning. FFF multicolor anatomical models and SLA surgical guides were produced using 3D printing technology. The first case outlines the utility of this approach to place the optimal surgical window at the lateral sinus lift with anticipated difficult access. In the second case, distinct sites for autogenous bone harvesting were identified while preserving critical adjacent structures with surgical simulation. Finally, the third case outlines this strategy for optimal surgical access to expose an impacted second premolar.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;Both clinicians and patients benefited from the educational use of FFF‒SLA 3D-printed models, and all cases were successfully treated without complications.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusions: &lt;/strong&gt;These cases demonstrate the significant utility of these digital technologies and rapid prototyping for improved pre-surgical planning, patient motivation, and didactic training that contribute to improved quality of clinical care.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Key points: &lt;/strong&gt;To the authors' knowledge, this is the first case reports employing both fused filament fabrication (FFF) and stereolithography (SLA) printing techniques in dental surgery. This innovative approach addresses a range of clinically challenging scenarios presented in this report. Computed tomography (CT) and intraoral scanning are essential for three-dimensional (3D) reconstruction. Specialized software is required to design the guide with precise specifications, and FFF and SLA printers are necessary for fabricating the 3D model. Three-dimensional reconstruction can be time-intensive, particularly when manual segmentation is necessary. Acquiring proficiency in the software may require additional time, and multicolor 3D printing also demands extended printing durations.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Plain language summary: &lt;/strong&gt;This study explores how digital imaging and three-dimensional (3D) printing can improve complex dental surgeries. Using tools such as computed tomography scans and intraoral scans, dentists can create detailed 3D models of a patient's bone and soft tissues. Two popular 3D printing methods-fused-filament fabrication (FFF) and stereolithography (SLA)-were used to make these models, which help with surgical planning. T","PeriodicalId":55950,"journal":{"name":"Clinical Advances in Periodontics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143366879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Horizontal platelet-rich fibrin versus advanced platelet-rich fibrin plus in gingival recession management.","authors":"Kavitha Sridhar, Anupama Tadepalli, Harinath Parthasarathy, Priyanka K Cholan, Lakshmi Ramachandran","doi":"10.1002/cap.10342","DOIUrl":"https://doi.org/10.1002/cap.10342","url":null,"abstract":"<p><strong>Background: </strong>Newer generation platelet concentrates, such as advanced platelet-rich fibrin plus (A-PRF+) obtained following low-speed centrifugation concept and horizontal platelet-rich fibrin (H-PRF) obtained from swing out and bucket system, showed increased platelet entrapment and growth factor release in the in-vitro studies. This prospective study aimed to evaluate and compare the clinical outcomes of A-PRF+ and H-PRF membranes in the treatment of gingival recession defects. The objectives of this study were to compare the changes in the recession height (RH) and the mean root coverage percentage (MRC%) between and within the research groups.</p><p><strong>Methods: </strong>Forty-four systemically healthy patients diagnosed with 84 Cairo's RT 1 and RT 2 gingival recession defects in the maxillary anterior and premolars were randomly treated with a combination of the coronally advanced flap (CAF) and A-PRF+ membrane (n = 22 subjects) or H-PRF membrane (n = 22 subjects). Patients were reviewed at 3 and 6 months postoperatively. Parameters including RH, MRC%, complete root coverage (CRC), gingival thickness, keratinized tissue height, and root coverage esthetic scores were documented.</p><p><strong>Results: </strong>Both treatments resulted in a significant reduction in RH (p < 0.001). The CAF + A-PRF+ group demonstrated a reduction in RH from 2.47 ± 1.00 mm to 0.59 ± 0.52 mm and the MRC% was 76.33 ± 22.54%, at 6 months. In the CAF+H-PRF group, the mean RH decreased from 2.43 ± 1.01 mm to 0.38 ± 0.59 mm and the MRC% was 85.51 ± 19.87%. Three- and six-month intergroup analysis revealed statistically insignificant differences in the observed clinical parameters between the groups (p > 0.05).</p><p><strong>Conclusions: </strong>The study found that both CAF + H-PRF and CAF + A-PRF+ protocols resulted in similar clinical outcomes while treating maxillary gingival recession defects.</p><p><strong>Plain language summary: </strong>Numerous modifications have been proposed to improve the growth factor content in the platelet concentrates and thereby therapeutic potential. This study compared platelet-derived membranes obtained by two different spin protocols in the treatment of gum recession. Forty-four patients were treated with either platelet-derived membrane obtained by horizontal spin protocol (test group) or low-speed spin concept (control group). Both treatment methods resulted in satisfactory healing. At the end of 6 months, no differences were noted with regard to the changes in clinical measurements and root coverage percentage indicating similar clinical efficacy of both preparatory techniques.</p>","PeriodicalId":55950,"journal":{"name":"Clinical Advances in Periodontics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143061678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}